Method of bringing to readiness an inflatable airbag of safety device, safety device for a vehicle, valve device

摘要

A method of bringing to readiness an inflatable airbag of a safety device is characterized in the interruption of the gas flow through the inlet of the airbag at a specified time instant. The interruption of the gas flow through the inlet of the airbag alternates with its resumption, generating a sequence of gas flow pulses of controllable duration and on/off time ratio. A safety device comprises the airbag ( 1 ) a gas source ( 3 ), and a valve device ( 8 ). The valve device is formed by a pneumatic distributor having two stable positions: an open position, and a closed position.